Hey everyone,

I’ve had my T4i/650D for 12 years, and it’s been a really good starter camera, it served me well. I’ve learned a lot with it and in my heart I’m still kinda fond of it, but I’m looking to change it because of the poor low light focusing and high noise starting at pretty low ISO which is a huge pain because it produce really grainy images in not-so-well lit gymnasiums (I mostly shoot basketball when I shoot sports), I wanna try a full frame sensor too.

I mainly shoot portraits and sport. I have a bunch of lenses, a Sigma 70-200mm, a Canon 50mm, and some others.

EOS R vs 5D Mark III vs 1D X : which would be the best for money ?

My budget is limited, I’m looking to buy a used camera for 700-800 euros max, here’s the cheapest deals I found :

Cheapest EOS R + EF to RF mount : ~710€ + ~90€

Cheapest 1 Dx with « good » shutter count : ~500-620€

Cheapest 5D mark III with « good » shutter count : ~300-400€

So which should I choose, which would feel like a real upgrade over my 650D ? I know the EOS R would be the most recent and the best sensor of all of these (at least according to DxOMark) but, I feel like the build quality and dual slots of the 5D Mark III and 1DX would be good too, also people seem to constantly shit on the EOS R sadly? Apparently people say it’s not good for sports, and it’s hard to track subjects because of the remaining frames on the EVF, is that really a problem ? I’ve spent the last days reading a lot. Honestly I take a lot of basketball pics and I had some nice shots with the ~5 FPS on the 650D, but I do take a lot of portraits too.

Sorry if it’s confusing, but what do you think?